Pith Number

pith:6C75WTCF

pith:2011:6C75WTCFTIKOZCQTU4DXLQEU5Z

not attested not anchored not stored refs pending

Quantitative approaches to information recovery from black holes

Bartlomiej Czech, Vijay Balasubramanian

arxiv:1102.3566 v1 · 2011-02-17 · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6C75WTCFTIKOZCQTU4DXLQEU5Z}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:18:35.725024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0bfdb4c459a14ec8a13a70775c094ee7e613bc8c17da44a29afde4148290392

Aliases

arxiv: 1102.3566 · arxiv_version: 1102.3566v1 · doi: 10.48550/arxiv.1102.3566 · pith_short_12: 6C75WTCFTIKO · pith_short_16: 6C75WTCFTIKOZCQT · pith_short_8: 6C75WTCF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6C75WTCFTIKOZCQTU4DXLQEU5Z \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f0bfdb4c459a14ec8a13a70775c094ee7e613bc8c17da44a29afde4148290392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b23d9126705ba6b98d2b69e0d67f099da3594a10c0996149f5fd506ca8263800",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-02-17T11:56:38Z",
    "title_canon_sha256": "2f8ab77cfbce714047b2a72e343f64d656ea4d4f10440d2f190acb0eb4ad6b22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3566",
    "kind": "arxiv",
    "version": 1
  }
}